کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
681699 888959 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of flow rate and substrate concentration on the formation and H2 production of photosynthetic bacterial biofilms
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Effects of flow rate and substrate concentration on the formation and H2 production of photosynthetic bacterial biofilms
چکیده انگلیسی

Photosynthetic bacteria (PSB), Rhodopseudomonas palustris CQK 01, were immobilized on the surface of a thin glass slide in a lab-scale flat panel photobioreactor under different flow rates and substrate concentrations. The morphology, dry weight and thickness of the mature PSB biofilms were determined to reveal the relationship between biofilm formation and hydrogen production performance. The mature biofilm formed at a low flow rate and a high substrate concentration showed a looser structure, these structures of the mature biofilm then affected the H2 production performance of the bioreactor during mature stage. The biofilm formed at a flow rate of 228 ml/h and a substrate concentration of 60 mmol/l exhibited the highest dry weight and optimally porous structure, which is beneficial not only for hydrogen removal from the biofilm but also glucose diffusion into the biofilm, thus significantly boosting the photo-hydrogen production performance.


► Indigenous PSB were used to hydrogen production.
► Biofilm methods of the immobilization technologies could enhance bacterial adsorption and hydrogen production.
► Investigation was carried out for the relationship between biofilm formation and hydrogen production performance under flow rate and substrate concentration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 102, Issue 13, July 2011, Pages 6902–6908
نویسندگان
, , , , ,